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How is a codominant trait expressed in an organism?
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13. Mendelian Genetics
Incomplete Dominance vs. Codominance
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Which of the following terms means that two alleles combine and create a blended physical trait?
A
Complete Dominance
B
Incomplete Dominance
C
Codominance
D
Epistasis
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Understand the concept of alleles: Alleles are different forms of a gene that are found at the same place on a chromosome. They can influence the trait that is expressed in an organism.
Learn about dominance in genetics: In genetics, dominance refers to the relationship between alleles, where one allele can mask the expression of another.
Define complete dominance: In complete dominance, the dominant allele completely masks the effect of the recessive allele in heterozygous individuals, resulting in the dominant trait being expressed.
Define incomplete dominance: In incomplete dominance, neither allele is completely dominant over the other. Instead, the heterozygous phenotype is a blend of the two alleles, resulting in a new, intermediate trait.
Differentiate between incomplete dominance and codominance: In codominance, both alleles in a heterozygous individual are fully expressed, resulting in a phenotype that shows both traits simultaneously, rather than a blend.
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